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Steel rods, 2 m in length and 60 mm in diameter are being drawn through an oven that maintains a temperature of 800°C and convection heat transfer coefficient of 128 W m2 ·K

Steel rods, 2 m in length and 60 mm in diameter, are being drawn through an oven that maintains a temperature of 800°C and convection heat transfer coefficient of 128 W/m2 ·K. The steel rods (ρ = 7832 kg/m3, cp = 434 J/kg·K, k = 63.9 W/m·K, and α = 18.8 × 10–6 m2/s) were initially in uniform temperature of 30°C. Using

(a) Table 4–2 and

(b) Figure 4–18, determine the amount of heat is transferred to the steel rod after 133 s of heating.

Jun 09 2020 View more View Less

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